Robots are going to do many things for us in the future, including refueling our car. Sinopec has already built a smart robot arm that can pump gas at filling stations. It comes with a vision & control system with obstacle avoidance to get the job done without any accidents.
This robot is already being tested at a gas station in the Guangxi Zhuang Autonomous Region. It accepts orders from customers using an app. You can find out more about it here.